FBMFormat modified by Kaban

Kaban — Fri, 21 Oct 2016 10:20:50 -0000

--- v1
+++ v2
@@ -40,7 +40,7 @@
 where

 * *dwId* - file identifier (*4D424C46* in hex or "FLBM")
-* *dwFormat* - bit depth/colorspace (see [SBM format](SBMFormat))
+* *dwFormat* - bit depth/colorspace (see [Color Formats](ColorFormats))
 * *dwWidth* - image width
 * *dwHeight* - image height
 * *dwRowSize* - row size in bytes

FBMFormat modified by Kaban

Kaban — Fri, 21 Oct 2016 10:15:18 -0000

FBM (FLASH BitMap) is simplified version of SBM designed for images stored in flash memory.
This format does not support compression and embedded palettes.

Layout

Header
Pixel Data

Structures

File header

Fields are 32-bit aligned for fast access with 32-bit ARM MCU's

Delphi/Pascal

type
    TFBMHeader = packed record
        dwID: cardinal;
        dwFormat: cardinal;
        dwWidth: cardinal;
        dwHeight: cardinal;
        dwRowSize: cardinal;
        dwDataSize: cardinal;
    end;

C/C++

typedef struct _fbm_header {
    uint32_t dwId;
    uint32_t dwFormat;
    uint32_t dwWidth;
    uint32_t dwHeight;
    uint32_t dwRowSize;
    uint32_t dwDataSize;
} fbm_header_t;

where

dwId - file identifier (4D424C46 in hex or "FLBM")
dwFormat - bit depth/colorspace (see SBM format)
dwWidth - image width
dwHeight - image height
dwRowSize - row size in bytes
dwDataSize - total pixel data size in bytes

Recent changes to FBMFormat

FBMFormat modified by Kaban

FBMFormat modified by Kaban

Layout

Structures